Re: [FIX PATCH v2] selftests: tracing: Fix to unmount tracefs for recovering environment

From: Shuah Khan
Date: Tue Sep 12 2023 - 11:36:02 EST


On 9/11/23 19:24, Steven Rostedt wrote:
On Tue, 12 Sep 2023 10:10:39 +0900
"Masami Hiramatsu (Google)" <mhiramat@xxxxxxxxxx> wrote:

From: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>

Fix to unmount the tracefs if the ftracetest mounted it for recovering
system environment. If the tracefs is already mounted, this does nothing.

Suggested-by: Mark Brown <broonie@xxxxxxxxxx>
Link: https://lore.kernel.org/all/29fce076-746c-4650-8358-b4e0fa215cf7@xxxxxxxxxxxxx/
Fixes: cbd965bde74c ("ftrace/selftests: Return the skip code when tracing directory not configured in kernel")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
---
Changes in v2:
- use -n option explictly for testing the string is non-zero.
---
tool

Reviewed-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>

-- Steve

Thank you all. Applied to linux-kselftest fixes branch for next rc

thanks,
-- Shuah